在JavaScript中,将Base64编码的字符串转换为Uint8Array可以通过以下步骤实现: 解码Base64字符串:首先,需要将Base64编码的字符串解码为二进制数据。 创建Uint8Array:然后,将解码后的二进制数据转换为一个Uint8Array。 下面是实现这一过程的JavaScript代码: javascript /** * 将Base64编码的字符串转换为Uint8Array *...
" 的 Base64 编码 const binaryData = base64ToUint8Array(base64Data); console.log(binaryData); 应用场景 文件上传:在客户端将文件转换为 Base64 编码后上传,服务器端再将 Base64 解码为二进制数据进行存储。 数据加密:加密后的二进制数据可以编码为 Base64,便于传输和存储。 图像处理:在网页中直接嵌入 Ba...
2.base64转Uint8Array /*** base64字符串转为uint8array数组*/constbase64ToUint8Array =function(base64String) {try{letpadding ='='.repeat((4- base64String.length%4) %4);letbase64 = (base64String + padding).replace(/\-/g,'+').replace(/_/g,'/');letrawData =atob(base64);letout...
constbase64ToUint8Array=function(base64String) { try{ letpadding='='.repeat((4-base64String.length%4)%4); letbase64=(base64String+padding) .replace(/\-/g,'+') .replace(/_/g,'/'); letrawData=atob(base64); letoutputArray=newUint8Array(rawData.length); for(leti=0;i<rawData.l...
问node.js节点-red-将Base64字符串转换为uint8arrayEN直接上代码： var img = "imgurl";//imgurl ...
JS string 转 Byte64[] 2 3 4 5 6 7 8 9 10 11 12 13 14 functionurlBase64ToUint8Array(base64String) { const padding ='='.repeat((4 - base64String.length % 4) % 4); const base64 = (base64String + padding) .replace(/\-/g,'+')...
function _base64ToArrayBuffer(base64) { var binary_string = window.atob(base64); var len = binary_string.length; var bytes = new Uint8Array( len ); for (var i = 0; i < len; i++) { bytes[i] = binary_string.charCodeAt(i); ...
I was looking to decode anIcrcAccountprovided by the OISY Wallet Signer to a string using theownerandsubaccount. Thesubaccount, in this case, is provided as abase64string, so I needed to convert it to aUint8Array. I could have done this if I had access to a utility within the@dfini...
*将base64转换为blob * @param {String} base64 * @returns */ function base64ToBlob(base64) { let parsedBase64 = parseBase64(base64); let u8arr = base64ToUint8Array(base64); return new Blob([u8arr], { type: parsedBase64.mime }); ...
首先,我们先将base64转换为blob类型(blob是一个长度可变的二进制大对象字符串) dataURLtoBlob(dataurl,name) {varmime = name.substring(name.lastIndexOf('.')+1)varbstr = atob(dataurl), n = bstr.length, u8arr =newUint8Array(n);while(n--) { ...